volcanic facies

Hidden granite porphyry is of volcanic neck facies and gives isotopic age of zircon being 32 ± 0.2 Ma.

潜花岗班岩为火山颈相，其锆石U-Pb同位素年龄为32±0.2Ma。

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Based on the study of cores, well cuttings, and outcrop sections, the facies of volcanic rocks can be divided into 4 types and 12 sub-facies.

根据钻井岩芯/岩屑和剖面地质研究结果，火山岩相可分为4类12型。

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Volcanic eruption facies and flooding facies are extensively developed in the Sihetun area, west Liaoning.

辽西四合屯地区中生代火山活动发育，广泛分布着火山作用形成的爆发相、溢流相火山岩。

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The volcanic rocks lithologic divide into burst and overflow facies, mainly is overflow facies.

火山岩相划分为爆发相和溢流相, 以溢流相为主.

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Favorable volcanic facies, efflorescence and structural fracture are three major controlling factors of favorable volcanic reservoir.

近火山口有利岩相带中，风化淋滤溶蚀作用和构造裂缝是营城组火山岩储层形成有利储集空间的主要控制因素。

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Combined with seismic data, the main volcanic facies are explosive facies, effusive facies and volcanic sedimentary facies.

结合地震资料，其火山岩岩相主要为爆发相、溢流相、火山沉积相。

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Geological Characteristics of Iron& ore in Volcanic Rocks of Continental Facies in Late Triassic, South Fujian

闽南晚三叠世陆相火山岩铁矿地质特征

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